Objective: To explore the mediating role of parental autonomy support in restrictive mediation and parent-child conflict and the moderating role of parents' phubbing. Methods: There were 999 adolescents investigated by using the Restrictive Mediation Scale, Parental Autonomy Support Scale, Parent-Child Conflict Scale and Parents' Phubbing Scale and the hypothesis were tested by mediating and moderating analysis. Results: (1) The restrictive mediation positively related to parent-child conflict (r = 0.40, P < 0.01), negatively related to parental autonomy support (r =–0.38, P < 0.01)。The parental autonomy support negatively related to parent-child conflict (r =–0.43, P < 0.01)；(2) Parental autonomy support mediated the relationship between restrictive mediation and parent-child conflict，with the effect value of 0.11 and effect amount of 28.21%；(3) Parent’s phubbing not only moderated the relationship between restrictive mediation and parent-child conflict(β = 0.07, P < 0.05), but also the relationship between parental autonomy support and parent-child conflict (β =–0.10, P < 0.001). Conclusion: Restrictive mediation was positively related to parent-child conflict, with their link mediated by parental autonomy support； Furthermore, parent’s phubbing moderated the path, adolescents with more parent’s phubbing, restrictive mediation positively related to parent-child conflict more strongly and parental autonomy support negatively related to parent-child conflict more strongly.

目的：考察父母自主支持在限制干预和亲子冲突关系中所起的中介作用和父母低头行为的调节作用。方法：采用限制干预量表、父母自主支持量表、亲子冲突量表和父母低头行为量表对999名青少年进行问卷调查，采用中介和调节效应分析进行假设检验。结果:（1）限制干预与亲子冲突显著正相关（r = 0.40， P < 0.01），限制干预与父母自主支持显著负相关（r =–0.38， P < 0.01），父母自主支持和亲子冲突显著负相关（r =–0.43， P < 0.01）；（2）父母自主支持在限制干预和亲子冲突之间起中介作用，中介效应值为0.11，效应量为28.21%；（3）父母低头行为对限制干预和亲子冲突的关系具有显著调节作用（β = 0.07， P < 0.05），父母低头行为对父母自主支持和亲子冲突的关系也具有显著调节作用（β =–0.10， P < 0.001）。结论：限制干预不仅能正向作用于亲子冲突，而且还能通过父母自主支持对其产生间接作用；父母低头行为具有调节作用，父母低头行为多的青少年，限制干预对亲子冲突有更强的正向作用，父母自主支持对亲子冲突有更强的负向作用。

中国科学院网信专项（项目编号CAS-WX2021PY-0204）